In Order to Implement an ERC20 Token Contract, You'd Need

Multiple Choice

In order to implement an ERC20 token contract, you'd need at least to implement the following functions and events in order to fulfill the interface requirements:

A) totalSupply() , balanceOf(address) , allowance(address,address) , transfer(address,uint256) , approve(address,uint256) , transferFrom(address,address,uint256) . Events: Transfer(address,address,uint256) , Approval(address,address,uint256)
B) name() , symbol() , totalSupply() , balanceOf(address) , ownerOf(uint26) ,approve(address,uint256) , takeOwnership(uint256) ,transfer(address,uint256) ,Events: Transfer(address,address,uint256) , Approval(address,address,uint256)